Project Yggdrasil Workspace
Clone
git clone https://github.com/project-yggdrasil-workspace.git --recursive
Sync
Sync with upstream:
git submodule update --remote
git subtree push --prefix=sub/libpng https://github.com/test/libpng.git master
git clone https://github.com/project-yggdrasil-workspace.git --recursive
Sync with upstream:
git submodule update --remote
git subtree push --prefix=sub/libpng https://github.com/test/libpng.git master